Delete entire docker container, image and local data

Hello dear Docker Forum!

I’m pretty new to the Docker world. I have one docker container/image on my server, timhaak\plex. And I’ve been trying to Google some answer about how I delete/remove it all so I can install needo\plex instead 'cause I want to have the latest versions of the Plex server went it updates.

Or is it perhaps better to remove/delete everything with the timhaak\plex docker and just run regular Plex server without Docker?

Best regards!